Ibrahimovic was ruthless on his first chance, firing low off the left post after entering the penalty box in the 31st minutes, But he was dismissed in the 58th minute.
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Romelu Lukaku went on to draw Inter Milan level from the penalty kick spot.
The match referee also exited with a pulled muscle and was replaced by the fourth official with 10 minutes left, before substitute Christian Eriksen curled in the winning goal in stoppage time.(dpa/NAN)